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Convenience function that combines get_sighash and append_signature for cases where the private key is available in memory.

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Signature

  • TypeScript
  • Go
  • Kotlin
function sign_transparent_input(
  pczt: WasmPczt,
  input_index: number,
  private_key: string
): WasmPczt

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Parameters

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pczt
Pczt
required
The PCZT to sign
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input_index
number
required
Index of the transparent input (0-based)
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private_key
string
required
32-byte secp256k1 private key (hex)

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Returns

Updated PCZT with the signature added.

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Example

// Sign input 0
pczt = t2z.sign_transparent_input(pczt, 0, privateKeyHex);

// Sign all inputs
for (let i = 0; i < inputs.length; i++) {
  pczt = t2z.sign_transparent_input(pczt, i, keys[i]);
}

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When to Use

Use this function when:
  • Private key is available in memory
  • Testing or development
  • Simple single-party transactions
For hardware wallets or HSMs, use get_sighash + append_signature instead.

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See Also